125748636 has 96 divisors (see below), whose sum is σ = 333946368. Its totient is φ = 36537600.

The previous prime is 125748629. The next prime is 125748661. The reversal of 125748636 is 636847521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362215 + ... + 362561.

It is an arithmetic number, because the mean of its divisors is an integer number (3478608).

Almost surely, 2^125748636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125748636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166973184).

125748636 is an abundant number, since it is smaller than the sum of its proper divisors (208197732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125748636 is a wasteful number, since it uses less digits than its factorization.

125748636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 125748636 is about 11213.7699280840. The cubic root of 125748636 is about 500.9961952054.

The spelling of 125748636 in words is "one hundred twenty-five million, seven hundred forty-eight thousand, six hundred thirty-six".